Particular Operations - TESY EVHP Series Manual

7.1.3.17 TOTAL OF THE COMPRESSOR OPERATING
HOURS
7.1.3.17.1 General information
The equipment is capable of memorizing up to 9,999
compressor operating hours, if the number of hours
exceeds "9,999" it flashes.
7.1.3.17.2 Display of compressor operating hours
•
Make sure that the keyboard is not locked
(paragraph 7.1.3.3) and that no other advanced
procedure is in progress;
•
Press and release the
show "Pb1";
•
Press and release either the
to select "CH"; • Press and release the
To exit the procedure:
•
Press and release the
out any other operation for 60 seconds.
Alternatively:
•
Press and release the
Parameter description
Password (shadow)
H2O Set HOT economy cycle
H2O Set HOT automatic cycle
H2O Set COLD
H2O Set for heat pump stop
H2O Set for the enabling of photovoltaic
supplement
H2O Set ANTI-FREEZE
Set point GREEN cycle
Set cold evaporator
Set damaged evaporator
Upper probe calibration
Lower probe calibration
Evaporator probe calibration
Probe type
Decimal point
Unit of measurement
Function associated with the evaporator
probe
Local display data
Remote display data
key: the display will
or the key
key.
key or do not carry
key.
Code U.M.
PA
°C/°F
SP1
°C/°F
SP2
°C/°F
SP3
°C/°F
SP5
°C/°F
SP6
°C/°F
SP7
°C/°F
SP8
°C/°F
SP9
°C/°F
SP10
°C/°F
CA1
°C/°F
CA2
°C/°F
CA3
P0 ----
P1 ----
P2 ----
P4 ----
P5 ----
P6 ----
Page 21 of 28

7.2 Particular operations

EVHP has a fan speed control system that increases the
speed of the same, when the ambient temperature drops
to below -1°C, at higher temperatures, the fan maintains a
lower speed in order to reducing the noise of the
equipment.
The equipment is also provided with a verification system
of the environmental
temperatures of the external incoming air. The below
described function is necessary to avoid the equipment
working with the heat pump mode out of specification,
which may cause faults to the compressor and the
consequent interruption of the functionality.
By every start, the fan is activated for a time set up by
parameter C12 corresponding to 1 minute. After this time,
the system measures the incoming air temperature. If the
temperature is equal to or lower than parameter SP9 (-
7°C), then the conditions for the activation of the heat
pump unit are not met, therefore the electric resistance is
activated. The heating-up process continues with the help
of the electrical resistance until the set point established
with the ongoing active cycle is reached.
The system verifies cyclically (every 120 minutes) the
environmental conditions and activates the heat pump
mode only when these conditions are adequate for its
operation.
Min Max Default
r3 r4 55.0
55.0
r1 r2
10.0 r2 45.0
r1 SP2 62.0
40.0 100.0 75.0
10
0 40
0 100.0 40
-7.0
-25.0 25.0
-50.0 25.0 -25.0
0.0
-25.0 25.0
-25.0 25.0 0.0
-25.0 25.0 0.0
0 1
0 1
0 1
0 2
0 3
0 3
conditions concerning
Notes
Function reserved for
0
specialised technical staff
(56°C for L versions)
0 = PTC
1 = NTC
1
2 = PT1000
1 = Decimal point per
1 Dy(dysprosium)
temperature
0 = °C
0
1 = °F
0 = Disabled
1 = Defrosting start-stop
2
2 = Defrosting start
0 = Upper probe
1 = Operative set point
0
2 = Lower probe
3 = Evaporator probe
0 = Upper probe
1 = Operative set point
0
2 = Lower probe
3 = Evaporator probe
the